Stratigraphic sample
- Restoration, of The Agony in the Garden with the Donor, Louis d’Orléans (1405-1408)
- Restoration, of The Wine of Saint Martin’s Day by Pieter Bruegel the Elder
- The Restoration of the two Equestrian Portraits by Velázquez
- Restoration of Ariadna
- The Restoration of Nero and Seneca by Eduardo Barrón
- The Restoration of Adam and Eve, by Dürer
- The Restoration of Philip II on Horseback by Rubens
- The Restoration of The Adoration of the Shepherds by Pietro da Cortona
- The Restoration of The Soult Immaculate Conception by Bartolomé Esteban Murillo
- The Restoration of The Purification of the Virgin in the Temple by Pedro de Campaña
- The Restoration of the 2nd and 3rd of May
Stratigraphic sample showing the preparatory layer of calcium carbonate under the grey priming
The preparation applied to the canvas of Philip II on Horseback is a light grey-brown colour. It contains calcium carbonate (natural chalk) to which small quantities of earth pigments were added to create a tinted tone, as well as a very small amount of white lead. Preparations of this type are commonly found in Flemish painting of the period.
